Small-scale gold mining in the area releases mercury into the environment, where it can make its way into fish and, in turn, ...
KEDOUGOU, Senegal (AP) — The quickest way to separate gold from rock, Sadio Camara says, is with a drop of mercury. She empties a dime-sized packet of the silvery liquid into a plastic bucket of muddy ...
Unlike alluvial gold, which is found as very small flakes on riverbanks, gold-bearing rocks have to be dug out of the ground. We're after pure gold, but rock that contains gold also includes lots of ...
A drill echoes through narrow tunnels deep within the mountain where miner Hugo Flores bores into rock in search of one of Earth’s most toxic elements. Buried in red stripes of minerals illuminated by ...
The United Nations warned that mercury contamination from illegal gold mining in Colombia’s Atrato River basin has created a ...